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. Author manuscript; available in PMC: 2022 Oct 10.
Published in final edited form as: Sci Total Environ. 2021 Jun 1;790:148164. doi: 10.1016/j.scitotenv.2021.148164

Table 3.

Statistical analysis test results. The first four rows of the table contain the results from the two-sample t-test. The null hypothesis stated that there was no difference between the frisbee and foliar concentrations for each metal(loid). The last row lists the interclass correlation coefficients (ICC) for each contaminant of interest. Values were obtained using a two-way agreement model in R Studio.

Two-Sample t-Test Pb As Al Fe Cu Ni Zn
Standard Error 0.00 0.00 0.12 0.18 0.01 0.00 0.01
Degree of Freedom 7 5 8 6 8 6 6
T Statistic 2.19 −0.64 8.30 5.37 3.07 3.53 2.39
P-value 0.97 0.27 1 0.99 0.99 0.99 0.97
ICC Coefficients 0.39 0.36 0.03 0.08 0.30 0.01 −0.11